Kirkland Signature Calcium + D3 is important for building a strong, healthy body. Calcium is essential for strong bones and Vitamin D3 helps the body absorb Calcium.Adequate calcium and vitamin D as part of a healthful diet, along with physical activity, may reduce the risk of osteoporosis later in life.*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.